Disraeli's assessment of Peel, from Lord George Bentinck (1852)

ature
had combined in Sir Robert Peel many admirable parts. In him a physical frame incapable of fatigue
was united with an understanding equally vigorous and flexible. He was gifted with the faculty of
method in the highest degree; and with great powers of application which were sustained by a
prodigious memory; while he could communicate his acquisitions with clear and fluent elocution.

Such a man, under any circumstances and in any sphere of life, would probably have become remarkable. Ordained from his youth to be busied with the affairs of a great empire, such a man, after long years of observation, practice, and perpetual discipline would have become what Sir Robert Peel was in the latter portion of his life, a transcendent administrator of public business and a matchless master of debate in a popular assembly.

Thus gifted and thus accomplished, Sir Robert Peel had a great deficiency; he was without imagination. Wanting imagination, he wanted prescience. No-one was more sagacious when dealing with the circumstances before him; no one penetrated the present with more acuteness and accuracy. His judgement was faultless provided he had not to deal with the future. Thus it happened through his long career, that while he always was looked upon as the most prudent and safest of leaders, he ever, after a protracted display of admirable tactics, concluded his campaigns by surrendering at discretion. He was so adroit that he could prolong resistance even beyond its term, but so little foreseeing that often in the very triumph of his manoeuvres he found himself in an untenable position. And so it came to pass that Roman Catholic emancipation, parliamentary reform, and the abrogation of our commercial system, were all carried in haste or in passion and without conditions or mitigatory arrangements.

Sir Robert Peel had a peculiarity which is perhaps natural with men of very great talents who have not the creative faculty; he had a dangerous sympathy with the creations of others. Instead of being cold and wary, as was commonly supposed, he was impulsive and even inclined to rashness...

Sir Robert Peel had a bad manner of which he was sensible; he was by nature very shy, but forced early in life into eminent positions, he had formed an artificial manner, haughtily stiff or exuberantly bland, of which, generally speaking, he could not divest himself. There were, however, occasions when he did succeed in this, and on these, usually when he was alone with an individual whom he wished to please, his manner was not only unaffectedly cordial, but he could even charm...

For so clever a man he was deficient in the knowledge of human nature. The prosperous routine of his youth was not favourable to the development of this faculty. It was never his lot to struggle; although forty years in Parliament, it is remarkable that Sir Robert Peel never represented a popular constituency or stood a contested election.

[Disraeli also said that Peel was the "burglar of
others' intellect", trading "on the ideas and intelligence of other"; that his
political life was "one great appropriation clause".]